Installation Instructions; Unit Structure; Important Information; Brief Description - AEG MTD 440 Gebrauchs- Und Montageanweisung

2.

Installation instructions

2.1

Unit structure

1 cold water connection, SW14
3 Snap closing catch
5 Cover securing screw
7 Unit front panel
9 Connection cable 700 mm long
11 Jet regulator SR 5 for MTD 570
and MTD 650
13 hose connection 3/8", 500 mm long,
including washers
2.2

Important information

Air in the cold water pipe will destroy the bare-wire heating system of the MTD. If the water
!
supply to the MTD has been interrupted, for example due to the risk of frost or work on the
water pipe, the following steps must be carried out before the system is used again:
1. Disconnect supply or disconnect the fuses.
2. Open a hot water tap downstream of the device for as long as it is necessary for the device and
the cold water pipe to be freed of air.
3. Reconnect the supply or connect the fuses again.
All information in these Instructions for Use and Installation must be followed carefully. They
provide important information with regard to safety, operation, installation, and maintenance of the
device.
2.3

Brief description

The hydraulically controlled, pressurized
Small-Instantaneous Water Heater MTD is designed to supply warm water for one tap only.
The unit is suitable for hand wash basins, for example in guest WC's, and for under-sink and over-
sink installation.
The bare-wire heating system is suitable for low-lime and limy water (see Table 2 for ranges of
use).
2.4

Fittings

Use only pressure tap fittings!
!
Please use jet regulator
2.5

Regulations and provisions

Installation (water and electrical installation), as well as the first start-up and maintenance of this
unit, may only be carried out by a qualified installer in accordance with these instructions.
Faultless operation and operational safety are only guaranteed if the original accessories and
spare parts intended for the unit are used.
The following should also be observed:
In accordance with IEE and WRC Regulations.
Regulations of the local energy supply company.
Regulations of the relevant water supply company.
The unit rating plate.
Technical data (see Table 1).
The specific electrical resistance of the water must not be lower than specified on the
!
rating plate. In the case it is used out of the water grid supply network, the lowest electrical
resistance of the water is to be taken into account (see Table 2). Your water supply company
will advise you of the specific electrical resistance or the electrical conductivity of the
water.
Water installation:
A safety valve is not necessary.
Operating the unit with preheated water only up to max. 25 °C is permitted!
Fittings for pressurised units are not permitted!
Electrical installation:
It must be possible to isolate the unit from the main supply on all poles with an isolating distance of
at least 3 mm, for example using fuses.
A
10 Jet regulator SR 3 for MTD 370
12 Identification plate
14 T-piece 3/8"
(10 or 11) depending on the type of MTD in question).
A
for the qualified installer
2 Sieve within cold water connectrion
4 Hot water connection; SW14
6 Unit rear panel
8 Fixing holes
and MTD 440
13